Floating type tooth-shaped fiber reinforced plastic (FRP) buffering energy-absorption anti-collision device

Abstract

The invention aims to provide a floating type tooth-shaped fiber reinforced plastic (FRP) buffering energy-absorption anti-collision device. The floating type tooth-shaped FRP buffering energy-absorption anti-collision device comprises a unit body and rubber rings. The unit body comprises an anti-collision unit I and an anti-collision unit II. The anti-collision unit I comprises an anti-collision shell I. A dense hole structure A and a dense hole structure B are arranged in the anti-collision shell I. The inner side of the anti-collision shell I is of a tooth-shaped structure. The anti-collision unit II comprises an anti-collision shell II. The middle portion of the anti-collision shell II is provided with a hollow structure. The hollow structure is filled with sandy soil or rubber particles or foam. A groove structure matched with the tooth-shaped structure of the anti-collision unit I is arranged on the outer side of the anti-collision unit II. The anti-collision unit I and the anti-collision unit II are connected into a whole through a damper and a connecting rod. The anti-collision unit I and the anti-collision unit II are wrapped with skin. The unit body and a protected unit are connected through the rubber rings. The floating type tooth-shaped FRP buffering energy-absorption anti-collision device has a multiple energy-absorption effect, the ship collision time can be effectively prolonged, and collision force is reduced.

Description

technical field [0001] The invention relates to a protection device, in particular to a protection device for structures such as sea-crossing and river-crossing bridge piers, ocean platforms, foundations of offshore wind power stations, and floating platforms. Background technique [0002] In recent years, the shipping industry has developed rapidly, the number, tonnage and speed of sailing ships have increased rapidly, the waterways have become increasingly crowded, and accidents of ships colliding with bridge piers have become more frequent. Once it happens, its consequences are often catastrophic, which may cause casualties, sinking of navigable ships, and damage to bridge structures. In the past five years, there have been more than 20 incidents of ships colliding with bridges in my country, causing heavy casualties and property losses. At the same time, in the unpredictable and harsh marine environment, collision accidents between ships and offshore platforms and struc...

AI Technical Summary

Problems solved by technology

In addition to the high cost and difficult quality assurance of the steel anti-collision device, there is another outstanding problem that it is easy to corrode in the marine environment, which affects the anti-collision performance and even causes the anti-collision device to fail

In order to solve the corrosion problem, some researchers have also proposed some anti-collision devices using new materials, such as polymer material plates, composite materials, etc., but there are problems such as single device form, limited energy absorption effect, and inability to effectively protect the structure.

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